Changelog
New features, fixes, and changes released for the AWS Subnet Calculator.
v0.2.0
July 29, 2026Added
- Editable subnet names in the AZ Mapper, reflected across every export format (JSON, CSV, Terraform, OpenTofu, CloudFormation, CDK, Pulumi).
- Redesigned Subnet Visualizer: a proportional address-space bar showing exactly how much of the VPC each subnet occupies, with a legend, hover tooltips, and a distinct pattern for unallocated space.
- Resource Planner now feeds the IaC exports — NAT Gateways, Elastic IPs, and EC2 Instances you plan are generated as real resources, attached to the selected subnet.
- Three new export formats: Pulumi, OpenTofu, and AWS CDK, alongside Terraform and CloudFormation.
Fixed
- Export Copy button showed a false “copied” checkmark on a tab whose content was never actually copied.
- CSV, Terraform, and CloudFormation exports now correctly escape subnet names containing commas, quotes, or newlines.
- The main navigation and export tab bars no longer overlap page content on narrow/mobile screens.
- The Export tab no longer resets to JSON after navigating to another tab and back.
v0.1.0
BaselineAWS-aware subnet calculator with VPC/subnet CIDR planning, a resource planner, AZ mapping, and export to JSON/CSV/Terraform/CloudFormation. Not previously version-tagged; recorded here as the starting point for this changelog.